docs: def available(self) -> bool:
          """Return if device is online or not."""
          # Both ability to retrieve state from MyQ cloud AND device itself has
          # to be online.
          is_available = self.api.online and \
              next(
                  attr['Value'] for attr in
                  self._device_json.get('Attributes', [])
                  if attr.get('AttributeDisplayName') == 'online') == "True"
  
          return is_available